be useful. You can unsubscribe with one click. This could potentially make it harder for one person to embezzle funds. If set up this way, all donations can be publicly seen, which may be useful for accountability. Donations can also be completely private if desired. Anybody can use bitcoin as long as they have access to the internet, including people who don't have bank accounts or otherwise have access to financial infrastructure. When using a static donation address, its also worth taking measures to stop being tracked from it (with a mixer, see Anonymity ) in the situation when you're not using a unique address each time. Although one could argue putting a bitcoin address on a website or business card is more than plenty, there are quite a few different ways to incorporate bitcoin donation options on a website.
Nobody can stop or seize transactions being sent or received of any amount. Examples of real-life use One of the very first uses of bitcoin was by Wikileaks to accept donations after Paypal and Visa imposed a worldwide blockade. No real life ID is required to use bitcoin.
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